Why does my phone keep saying it needs backed up? I let it do the backup and it still says this phone has never been backed up

Here's how to find your Next Backup Size:

• On iOS 11 or later and iPadOS: Go to Settings > [your name] > iCloud > Manage Storage > Backups. Tap the device you're using.
• On iOS 10.3: Go to Settings > [your name] > iCloud > iCloud Storage > Manage Storage. Tap the device you're using.

After you check to see how much iCloud Storage you have, try these steps to complete your backup:

1. Upgrade your iCloud storage plan.
2. Reduce the size of your backup.
3. Delete any data that you don't need.
4. If you still need help, contact Apple Support.

If a message says that your last backup couldn't be completed

1. Check that you're connected to Wi-Fi.
2. Ensure your device is up to date.
3. Try to back up on another Wi-Fi network.
4. If you still need help, contact Apple Support.